1. What is Steam Latent Heat?

Latent heat of vaporization (L_v) is the amount of energy required to convert 1 kg of liquid water into steam at constant temperature. For water at 100°C, this value is 2257 kJ/kg.

2. How Does the Calculator Work?

The calculator uses the latent heat formula:

Where:

• \( Q \) — Total heat energy (kJ)
• \( m \) — Mass of steam (kg)
• \( L_v \) — Latent heat of vaporization (kJ/kg)

Note: The calculator adjusts the latent heat value slightly based on temperature, though the primary reference value is at 100°C.

3. Importance of Latent Heat Calculation

Details: Calculating latent heat is crucial for designing steam systems, power plants, and heating processes where phase change energy is significant.

4. Using the Calculator

Tips: Enter mass in kilograms and temperature in Celsius. The calculator will estimate the total energy required for vaporization.

5. Frequently Asked Questions (FAQ)

Q1: Why is latent heat important?
A: It represents the substantial energy required for phase change, which is critical in thermal systems and power generation.

Q2: Does latent heat change with temperature?
A: Yes, it decreases as temperature increases, reaching zero at the critical point (374°C for water).

Q3: What's the difference between latent and sensible heat?
A: Sensible heat changes temperature, while latent heat changes phase without temperature change.

Q4: How accurate is this calculator?
A: It provides reasonable estimates for typical conditions but for precise calculations, steam tables should be consulted.

Q5: Can this be used for other substances?
A: No, this is specific to water/steam. Other substances have different latent heat values.